# Class: GeoPoint

GeoPoint 地理坐标.

# Table of contents

# Constructors

# Properties

# Methods

# Constructors

# constructor

+ new GeoPoint(x: number, y: number, z?: number): GeoPoint

GeoPoint 构造函数

# Parameters
Name Type Description
x number x坐标.
y number y坐标.
z? number z坐标(可选).

Returns: GeoPoint

# Properties

# x

x: number

坐标X.


# y

y: number

坐标y.


# z

Optional z: number

坐标z(可选).

# Methods

# add

add(p: GeoPoint): GeoPoint

两个点相加.

# Parameters
Name Type Description
p GeoPoint 要相加的点.

Returns: GeoPoint


# angle

angle(): number

角度.

Returns: number


# angleTo

angleTo(b: GeoPoint): number

距一个点的角度

# Parameters
Name Type
b GeoPoint

Returns: number


# angleWith

angleWith(b: GeoPoint): number

距一个点的角度

# Parameters
Name Type
b GeoPoint

Returns: number


# angleWithSep

angleWithSep(x: number, y: number): number

距一个点的角度

# Parameters
Name Type
x number
y number

Returns: number


# clone

clone(): GeoPoint

克隆一个坐标

Returns: GeoPoint


# distSqr

distSqr(p: GeoPoint): number

两点之间距离平方.

# Parameters
Name Type
p GeoPoint

Returns: number


# distanceTo

distanceTo(p: GeoPoint): number

两点之间距离.

# Parameters
Name Type
p GeoPoint

Returns: number


# div

div(k: number): GeoPoint

除一个系数.

# Parameters
Name Type Description
k number 系数.

Returns: GeoPoint


# divByPoint

divByPoint(p: GeoPoint): GeoPoint

两个点相除.

# Parameters
Name Type Description
p GeoPoint 要相除的点.

Returns: GeoPoint


# dot

dot(p: GeoPoint): number

# Parameters
Name Type
p GeoPoint

Returns: number


# equals

equals(other: GeoPoint, dotErr?: number): boolean

判断是否相等

# Parameters
Name Type Default value Description
other GeoPoint - 另外一个点
dotErr number 8 允许误差的小数点后几位,默认8位

Returns: boolean


# equalsZ

equalsZ(other: GeoPoint): boolean

是否相等(判断z).

# Parameters
Name Type
other GeoPoint

Returns: boolean


# lengthSq

lengthSq(): number

Returns: number


# lerp

lerp(v: GeoPoint, alpha: number): GeoPoint

# Parameters
Name Type
v GeoPoint
alpha number

Returns: GeoPoint


# mag

mag(): number

长度.

Returns: number


# matMult

matMult(m: number[]): GeoPoint

乘一个矩阵.

# Parameters
Name Type Description
m number[] 矩阵值.

Returns: GeoPoint


# mult

mult(k: number): GeoPoint

乘一个系数.

# Parameters
Name Type Description
k number 系数.

Returns: GeoPoint


# multByPoint

multByPoint(p: GeoPoint): GeoPoint

两个点相乘.

# Parameters
Name Type Description
p GeoPoint 要相乘的点.

Returns: GeoPoint


# perp

perp(): GeoPoint

投影 [x,y] = [-y, x].

Returns: GeoPoint


# roateAround

roateAround(angle: number, p: GeoPoint): GeoPoint

绕一个点旋转.

# Parameters
Name Type Description
angle number 弧度.
p GeoPoint 围绕的点.

Returns: GeoPoint


# rotate

rotate(angle: number): GeoPoint

旋转.

# Parameters
Name Type Description
angle number 弧度.

Returns: GeoPoint


# round

round(fixed?: number): GeoPoint

后小数点几位取整

# Parameters
Name Type Default value
fixed number 6

Returns: GeoPoint


# roundInt

roundInt(): GeoPoint

四舍五入取整.

Returns: GeoPoint


# roundStr

roundStr(fixed?: number): string

# Parameters
Name Type Default value
fixed number 6

Returns: string


# sub

sub(p: GeoPoint): GeoPoint

两个点相减.

# Parameters
Name Type Description
p GeoPoint 要相减的点.

Returns: GeoPoint


# toArray

toArray(): number[]

返回数组

Returns: number[]

The coordinates represeted as an array of x and y.

var ll = new vjmap.GeoPoint(-73.9749, 40.7736);
ll.toArray(); // = [-73.9749, 40.7736]
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# toString

toString(fixed?: number): string

返回字符串.

# Parameters
Name Type Default value
fixed number 6

Returns: string

The coordinates represented as a string of the format 'x, y, z?'.

var ll = new vjmap.GeoPoint(-73.9749, 40.7736);
ll.toString(); // = "GeoPoint(-73.9749, 40.7736)"
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# unit

unit(): GeoPoint

单位长度.

Returns: GeoPoint


# convert

Static convert(input: GeoPointLike): GeoPoint

根据不同的类型创建地理坐标 GeoPoint .

Example:

const p1 = GeoPoint.convert(new GeoPoint(x, y, z));
const p2 = GeoPoint.convert([x, y]);
const p3 = GeoPoint.convert([x, y, z]);
const p4 = GeoPoint.convert(lng: -73.9749, lat: 40.7736});
const p5 = GeoPoint.convert(lon: -73.9749, lat: 40.7736});
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# Parameters
Name Type Description
input GeoPointLike Either GeoPointLike, GeoPointLike or GeoPointLike object literal.

Returns: GeoPoint


# fromString

Static fromString(input: string): GeoPoint

根据字符串创建 GeoPoint.

Example:

const b = GeoPoint.fromString("1,2");
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# Parameters
Name Type
input string

Returns: GeoPoint

vjmap / Exports / GeoProjection